Added import feature.

src/manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": " Easy Session Manager",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": " Easy Session Manager allows you to manage your Firefox session by backing up or loading your saved sessions.",
 
   "applications": {
@@ -23,6 +23,8 @@
     "unlimitedStorage"
   ],
 
+  "background": { "page": "pages/import.html" },
+
   "browser_action": {
     "default_icon": "images/icons/sessionManager.png",
     "default_title": " Easy Session Manager",